MRCOOL

MRCOOL DIY 5th Gen 18,000 BTU 230V Complete System · 25ft Line Set

Name: MRCOOL DIY 5th Gen 18,000 BTU 230V Complete System · 25ft Line Set
Brand: MRCOOL

18000 BTU/h cooling22.5 SEER212800 BTU/h at 5°F2.44 COP at 5°F

Reviewed model match · retailer offers below

2 retailers$2,909.00–$2,910.00

Listed equipment price

Stock and observation dates shown belowCompare 2 retailers Dated retailer observations below · USD

SHOP THE SAME EQUIPMENT

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$1.00 difference across priced offers

2 retailers · 2 offers collected. Prices exclude shipping, tax, and installation. Compare the stock, condition, and date for each offer.

Retailer price observations for MRCOOL DIY 5th Gen 18,000 BTU 230V Complete System · 25ft Line Set
Retailer	Listed price & quantity	Availability & condition	Observed	Shop
HVACDirectStore policies & support Lowest observed	$2,909.00Complete system	In stock when checkedCondition not recorded	2026-11-06Source date 2026-11-06	View offer
MRCOOL DIY DirectStore policies & support	$2,910.00Complete system	In stock when checkedNew	2026-11-06Source date 2026-11-06	View offer

How these offers were matched

Exact system SKU DIY-18-HP-WM-230D25-O. Complete single-zone indoor+outdoor system with25ft precharged quick-connect line set; optional accessories excluded. Conflicting efficiency claims remain unassigned.

WHAT WE ACTUALLY OBSERVED

Prices have a history.

Observations keep their original source dates and purchase scopes. Historical lows are separate from current availability. Unpriced and configuration-dependent offers are never treated as exact-price lows.

HVACDirect · Complete system · price & stock history

Open to load this exact offer’s dated source observations.

MRCOOL DIY Direct · Complete system · price & stock history

Open to load this exact offer’s dated source observations.

HEATING BEYOND THE HEADLINE RATING

Cold-weather performance.

Outdoor: DIY-18-HP-C-230D25-O · Indoor: DIY-18-HP-WMAH-230D25-O · AHRI: 216032545

Heating capacity at 5°F: 12,800 BTU/h
COP at 5°F: 2.44
Heating capacity at 47°F: 18,000 BTU/h
Reported 5°F / 47°F capacity ratio: 71.11%

ENERGY STAR: Verified ENERGY STAR Cold Climate: Verified NEEP listing: Verified

5°F capacity: Maximum · 5°F COP: At maximum output · 47°F capacity: Rated. A minimum operating temperature does not establish delivered heat. Compare capacity modes and test conditions in the source; a reported capacity ratio is not a certification or rebate qualification.

Standards evidence.

No exact-model certification record has been reviewed for this listing in our evidence collection. This does not establish whether the product is certified.

How to verify the model and scope

THE DETAILS THAT MATTER

A clearer look at the specifications.

Published specifications and their source
Specification	Listed value	Source
Listed capacity (BTU/h)	18000	Retailer listing title
AHRI reference number	216032545	Official product registryReviewed 2026-11-07
47°F capacity reporting basis	RatedOperating mode explicitly identified by the NEEP source field.	Official product registryReviewed 2026-11-07
5°F capacity reporting basis	Maximum	Official product registryReviewed 2026-11-07
Refrigerant connections	Precharged quick-connect	Retailer specificationsReviewed 2026-11-06
Cooling capacity (BTU/h)	18000Exact matched indoor/outdoor system in the EPA certified product dataset.	Official product registryReviewed 2026-11-07
COP at 5°F as reported	2.44NEEP cop_max_5 for this exact matched system.	Official product registryReviewed 2026-11-07
COP at maximum output at 5°F	2.44NEEP identifies the temperature and operating mode in its field name; matched-system record checked November 7, 2026.	Official product registryReviewed 2026-11-07
COP at rated output at 5°F	2.44	Official product registryReviewed 2026-11-07
5°F COP reporting basis	At maximum output	Official product registryReviewed 2026-11-07
EER2	13.7	Official product registryReviewed 2026-11-07
ENERGY STAR Cold Climate designation	YesEPA Cold Climate field explicitly Yes. ENERGY STAR certification and its Cold Climate designation are separate.	Official product registryReviewed 2026-11-07
ENERGY STAR status in checked source	YesCurrent EPA certified product record matched to both component models and refrigerant.	Official product registryReviewed 2026-11-07
Heat pump type	Ductless mini-split	Retailer specificationsReviewed 2026-11-06
Heating capacity at 17°F as reported (BTU/h)	13400EPA reports this temperature point without an explicit maximum/rated capacity-mode qualifier. Do not silently relabel as maximum or rated.	Official product registryReviewed 2026-11-07
Heating capacity at 47°F as reported (BTU/h)	18000NEEP heating_capacity_rated_47 for this exact matched system.	Official product registryReviewed 2026-11-07
Rated heating capacity at 47°F (BTU/h)	18000	Official product registryReviewed 2026-11-07
Heating capacity at 5°F as reported (BTU/h)	12800NEEP heating_capacity_max_5 for this exact matched system.	Official product registryReviewed 2026-11-07
Maximum heating capacity at 5°F (BTU/h)	12800	Official product registryReviewed 2026-11-07
Heating capacity (BTU/h)	18000	Retailer specificationsReviewed 2026-11-06
Reported 5°F / 47°F capacity ratio (%)	71.11Calculated from this exact NEEP row: maximum capacity at 5°F divided by rated capacity at 47°F. This ratio is not a certification or rebate qualification.	Calculated from published specificationsReviewed 2026-11-07
HSPF2	11.5	Official product registryReviewed 2026-11-07
HSPF2 climate region	Region IVCatalog HSPF2-4 heading corresponds to the EPA value; separate RegionV ratings retained below.	Manufacturer documentationReviewed 2026-11-07
HSPF2 · Region V	8.5	Official product registryReviewed 2026-11-07
Matched indoor model	DIY-18-HP-WMAH-230D25-O	Official product registryReviewed 2026-11-07
Indoor unit style	Wall-mounted	Retailer specificationsReviewed 2026-11-06
Included line-set length (ft)	25	Retailer specificationsReviewed 2026-11-06
Minimum heating operating temperature (°F)	-13	Retailer specificationsReviewed 2026-11-06
Exact system verified on NEEP product list	YesLive NEEP record matched to the AHRI reference and both exact component models. NEEP listing and ENERGY STAR Cold Climate are separate statuses.	Official product registryReviewed 2026-11-07
Matched outdoor model	DIY-18-HP-C-230D25-O	Official product registryReviewed 2026-11-07
Refrigerant	R-454B	Retailer specificationsReviewed 2026-11-06
SEER2	22.5	Official product registryReviewed 2026-11-07
Device input voltage (V)	230	Retailer specificationsReviewed 2026-11-06
Included equipment	Complete system	Retailer specificationsReviewed 2026-11-06
Number of zones	1	Retailer specificationsReviewed 2026-11-06